# On distortion of the background radiation spectrum by wormholes: kinematic Sunyaev-Zel'dovich effect

## TL;DR

This paper explores how relic cosmological wormholes can distort the cosmic microwave background spectrum through a kinematic Sunyaev-Zel'dovich-like effect, offering a potential method to detect such wormholes.

## Contribution

It introduces the concept that wormholes with peculiar velocities can cause spectral distortions similar to the kinematic Sunyaev-Zel'dovich effect, providing a new detection approach.

## Key findings

- Static wormholes do not perturb the spectrum.
- Peculiar velocities induce spectral distortions analogous to KSZ.
- High-energy cosmic rays experience Doppler shifts, not spectral shape changes.

## Abstract

The problem of scattering of the background radiation on relic cosmological wormholes is considered. It is shown that static wormholes do not perturb the spectrum at all. The presence of peculiar velocities of wormholes results in a distortion of the CMB spectrum which is analogous to the kinematic Sunyaev-Zel'dovich effect. In the first order in $v/c$ the distortion of CMB cannot be separated from from the Compton scattering on electrons. In next orders the scattering on wormholes exhibits some difference from the Compton scattering. High-energy cosmic-ray particles spectrum does not change the form by KSZ, but undergoes a common Doppler shift. Such features may give a new tool to detect the presence of relic wormholes in our Universe.